Boulder, Colorado
How to Fill Out a Boulder Dirt Bike Bill of Sale
Complete guide for filling out a dirt bike bill of sale in Boulder, Colorado (Form DR 2173). Includes the exact Boulder County Motor Vehicle Office – Boulder location, current tax rates, and notarization requirements.
Title Transfer Fee
$7.20
Sales Tax Rate
8.85%
Notarization
Not Required
Step-by-Step: Filling Out Your Boulder Dirt Bike Bill of Sale
- 1
Enter seller and buyer information
Write full legal names and current addresses exactly as they appear on government-issued IDs. Both buyer and seller must use their full legal names — no nicknames or abbreviations. Errors here cause delays at the Boulder County Motor Vehicle Office – Boulder.
- 2
Record Dirt Bike details and VIN
Enter the year, make, model, body style, color, and the 17-character VIN exactly as printed on the dashboard (visible through the windshield) or door jamb sticker. The VIN must match the vehicle title exactly.
- 3
Record sale price, date, and payment method
Write the agreed sale price in both numeral form ($12,500.00) and written form (twelve thousand five hundred dollars). Enter the exact date of the sale — this date triggers the Colorado title transfer requirement. Note payment method: cash, check, or other.
- 4
Both parties sign and date
Both buyer and seller sign and date the completed form. Sign with blue or black ballpoint ink. Colorado does not require notarization for private vehicle sales. Both parties sign the title; a bill of sale is recommended. Print at least two originals — one for each party.
- 5
Submit to the Boulder County Motor Vehicle Office – Boulder
Bring the signed bill of sale, the vehicle title (signed over on the back), and a valid ID to: 2025 14th St, Boulder, CO 80302. Hours: Mon–Fri 7:30 AM–4:00 PM. Phone: (303) 205-5600. You'll pay the title transfer fee of $7.20 and sales tax at 8.85%.
Boulder Title & Registration Office
Office
Boulder County Motor Vehicle Office – Boulder
Address
2025 14th St, Boulder, CO 80302
Phone
(303) 205-5600
Hours
Mon–Fri 7:30 AM–4:00 PM
Special requirements in Boulder County:
- Title must be transferred at the Boulder County motor vehicle office within 60 days of purchase
- Colorado requires an emissions test (AirCare Colorado) for most vehicles in the Denver metro area
- Vehicle specific ownership tax (VSOT) is assessed annually based on vehicle value
- Buyer pays state and local sales/use tax at time of title transfer
Common Mistakes to Avoid
- ✗Signing before the notary if notarization is required — the notary must witness the signature
- ✗VIN errors — even one wrong character causes the CO DMV to reject the title transfer
- ✗Leaving the sale price blank or writing "gift" if money changed hands — this triggers audit risk
- ✗Using correction fluid to fix mistakes — always initial handwritten corrections instead
- ✗Not keeping a copy — both buyer and seller need a signed original
FAQ — Dirt Bike Bill of Sale in Boulder
- Where do I file a dirt bike bill of sale in Boulder?
- File at the Boulder County Motor Vehicle Office – Boulder, located at 2025 14th St, Boulder, CO 80302. Hours: Mon–Fri 7:30 AM–4:00 PM. Phone: (303) 205-5600.
- What is the vehicle title transfer fee in Boulder?
- The title transfer fee in Boulder County is $7.20. Combined sales tax rate: 8.85%. Colorado state rate 2.9% + Boulder County 0.985% + Boulder city 3.86% + RTD 1.1%
- Does Boulder, Colorado require notarization for a dirt bike bill of sale?
- No. Colorado does not require notarization for private vehicle sales. Both parties sign the title; a bill of sale is recommended.
- What form do I use for a dirt bike bill of sale in Colorado?
- Colorado uses Form DR 2173 for dirt bike title transfers. You can download it from the Boulder County Motor Vehicle Office – Boulder or generate a state-compliant version at BillOfSaleNow.